sound - Ubuntu refuses to output audio via HDMI - Ask Ubuntu
pulseaudio issue on QEMU/KVM guest VM when microphone is replugged/unplugged pulseaudio: pa_threaded_mainloop_lock failed pulseaudio: Reason: Invalid argument - rtt - IT Resource
HDMI Sound Has no Output - Installation - EndeavourOS
18.04 | El audio HDMI no funciona en ubuntu 18.04
Pulseaudio insists HDMI is unplugged, no sound : r/linuxmint